Looking for the best GM LS knock sensor kits? We’ve tested and reviewed top options to help you find the perfect fit for your engine, whether you need relocation, replacement, or upgrades.
GM LS engines are powerful, but they need the right parts to run smoothly. Knock sensors are key to keeping your engine safe and efficient. This guide will help you find the best GM LS knock sensor kits.
We’ve tested and reviewed top kits to save you time and money. Whether you’re a DIY enthusiast or a pro, these kits make installation easy. You’ll find options for relocation, replacement, and upgrades.
Discover kits that fit your GM LS engine perfectly. From genuine GM parts to aftermarket solutions, we’ve got you covered. Read on to find the perfect kit for your needs.
List of Top 10 GM LS Knock Sensor Kits
| Image | Title | Best For | Price |
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for GM Gen 3 LS V8 Engines LS1 LS6 LQ4 LQ9 LM7 LR4 Knock Sensor Relocation Kit |
This knock sensor relocation kit is perfect for GM Gen 3 LS V8 engine owners who want to save time and money on repairs. It’s ideal for DIY enthusiasts looking for an easy upgrade to boost engine reliability. |
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CNRAQR LS Gen 3 Knock Sensor Relocation Brackets with Extension Relocation Harness 36″ Fit for GM LS Gen 3 Engines LS1 LM7 LR4 LS6 L59 LQ9 |
This kit is for GM LS Gen 3 owners. It helps you move your knock sensors. You will not have to pull the intake. It is for LS1 LM7 and LQ9 engines. This is a great tool for a professional. It is good for a person with a workshop. Use it to save time and work fast. Your sensors will stay safe and easy to reach. It fits your engine block well. Get this kit for a smart repair. |
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Dual Knock Sensors with Wiring Harness and Intake Manifold Gasket Kit | for Chevy Silverado Avalanche Tahoe, GMC Sierra Yukon, Cadillac Hummer & More GM Vehicles | Replace# 12601822,213-3521,89060413 |
This is perfect for GM truck and SUV owners who need a fit part for a 4.8L, 5.3L, or 6.0L engine. It is also great for anyone who wants a simple repair kit with knock sensors, a harness, and intake gaskets in one box. |
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Dual Knock Sensor Kit with Wiring Harness & Intake Manifold Gasket,for Chevy Silverado Avalanche Tahoe, GMC Sierra Yukon, Cadillac Hummer & More Models Replace 12601822 213-3521 89060413 |
This Dual Knock Sensor Kit is perfect for GM truck and SUV owners with 4.8L, 5.3L, or 6.0L engines who need a reliable replacement for their knock sensors. It’s ideal for DIYers or mechanics looking for a complete, high-quality kit that fits perfectly and prevents leaks. |
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Dual Knock Sensors with Wiring Harness Kit | Knock Sensor 5.3 for Chevy Suburban Silverado Avalanche Tahoe, GMC Sierra Yukon, Cadillac Hummer & More GM Vehicles | Replace# 12601822 12589867 917-033 |
This Dual Knock Sensors with Wiring Harness Kit is perfect for anyone with a Chevy, GMC, Cadillac, or Hummer vehicle needing a reliable knock sensor replacement. It’s easy to install and built to last, ensuring your engine runs smoothly without noise or knock issues. |
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Knock Sensor Relocation Brackets and 36 Inches Extension Wire Harness for 1997-2007 GM Gen III LS V8 Engines LS1 LM7 LR4 LQ4 LS6 L59 LQ9 LM4 L33 |
This product is perfect for anyone who wants to relocate LS knock sensors with ease and keep their engine setup clean and safe. It’s great for people who need a simple, strong, and reliable way to extend and move their sensors on any GM Gen III LS engine. |
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GM Genuine Parts 213-3521 (12589867) Ignition Knock (Detonation) Sensor |
This part is perfect for GM car owners. It helps your engine run well. It is a great fit for Chevrolet and GMC trucks. Use it if your check engine light is on. It stops bad engine noise. This sensor is a top choice for a safe repair. It is made to fit just right. It is easy to use. You can trust this genuine part. It keeps your car in good shape. You will save time and feel good. |
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2Pcs Knock Sensor Relocation Bracket Kit for 1997-2007 GM Gen III LS V8 Engines LS1 LM7 LR4 LQ4 LS6 L59 LQ9 LM4 L33 |
This kit is for car fans and truck owners with GM LS V8 engines from 1997 to 2007. It helps move knock sensors to make repair work fast and easy without pulling the intake. Perfect for LS swap projects and custom builds that want to save time and money. If you love fast cars, this is good for you. |
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LS Gen 3 Knock Sensor Relocation Brackets with 41 Inch Extension Wire Harness Kit for 1997-2007 GM Gen III LS V8 Engines LS1 LM7 LR4 LQ4 LS6 L59 LQ9 LM4 L33 Aluminum |
This kit is perfect for anyone who works on GM Gen III LS engines and wants a fast, simple way to move the knock sensors without pulling the intake. It’s great for builders who want strong parts, easy wiring, and a clean setup. |
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GM Genuine Parts 213-1576 (12623730) Ignition Knock (Detonation) Sensor |
This GM Genuine Parts Ignition Knock Sensor is perfect for GM vehicle owners who want a reliable replacement part. It’s made to fit and work just like the original, so it’s ideal for keeping your car running smoothly. |
Detailed Reviews
Discover the top 10 GM LS Knock Sensor Kits in this expert-curated guide. Each kit is thoroughly reviewed for performance, value, and ease of use, ensuring you find the perfect fit for your needs. Whether you’re upgrading or replacing, this guide simplifies your choice and boosts your engine’s reliability.
1. for GM Gen 3 LS V8 Engines LS1 LS6 LQ4 LQ9 LM7 LR4 Knock Sensor Relocation Kit
This knock sensor relocation kit is made for GM Gen 3 LS V8 engines. It fits models like LS1, LS6, LQ4, and more. Check your engine type before buying.
It saves time and money by avoiding intake manifold removal. The kit also protects sensors from coolant leaks, preventing damage.
The DIY-friendly design allows easy top-side access. No vehicle lift needed. The package includes one complete kit.
| Pros | Cons |
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Perfect For:
This knock sensor relocation kit is perfect for GM Gen 3 LS V8 engine owners who want to save time and money on repairs. It’s ideal for DIY enthusiasts looking for an easy upgrade to boost engine reliability.
Ready to Purchase?
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2. CNRAQR LS Gen 3 Knock Sensor Relocation Brackets with Extension Relocation Harness 36″ Fit for GM LS Gen 3 Engines LS1 LM7 LR4 LS6 L59 LQ9
The CNRAQR LS Gen 3 Knock Sensor Relocation Kit makes your engine work easier. It keeps things simple and saves you time.
It fits Gen 3 engines only. It works with LS1, LS6, LM7, L59, LR4, L33, and LQ9. It does not fit Gen 2 or Gen 4.
It lets you move the knock sensors from the valley pan to the engine block edge. It helps you avoid pulling the full intake. It comes with two brackets and a 36-inch harness.
| Pros | Cons |
|---|---|
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Perfect For:
This kit is for GM LS Gen 3 owners. It helps you move your knock sensors. You will not have to pull the intake. It is for LS1 LM7 and LQ9 engines. This is a great tool for a professional. It is good for a person with a workshop. Use it to save time and work fast. Your sensors will stay safe and easy to reach. It fits your engine block well. Get this kit for a smart repair.
Ready to Purchase?
3. Dual Knock Sensors with Wiring Harness and Intake Manifold Gasket Kit | for Chevy Silverado Avalanche Tahoe, GMC Sierra Yukon, Cadillac Hummer & More GM Vehicles | Replace# 12601822,213-3521,89060413
This kit is for your car. It fits many GM trucks.
The parts are strong. They stop bad engine noise.
The kit has a harness. It has gaskets too. Buy this set now.
| Pros | Cons |
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Perfect For:
This is perfect for GM truck and SUV owners who need a fit part for a 4.8L, 5.3L, or 6.0L engine. It is also great for anyone who wants a simple repair kit with knock sensors, a harness, and intake gaskets in one box.
Ready to Purchase?
4. Dual Knock Sensor Kit with Wiring Harness & Intake Manifold Gasket,for Chevy Silverado Avalanche Tahoe, GMC Sierra Yukon, Cadillac Hummer & More Models Replace 12601822 213-3521 89060413
This Dual Knock Sensor Kit is built to last. It includes two knock sensors, a wiring harness, and intake manifold gaskets. These parts fit many GM trucks and SUVs perfectly.
The kit works with 4.8L, 5.3L, and 6.0L engines from 1999 to 2007. It fits popular models like Chevy Silverado, Tahoe, GMC Sierra, and Cadillac Escalade. Always check your engine size and year before buying.
Made from high-quality materials, this kit resists heat and vibration. It comes with a 24-month warranty for peace of mind. Installation is simple, saving you time and hassle.
| Pros | Cons |
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Perfect For:
This Dual Knock Sensor Kit is perfect for GM truck and SUV owners with 4.8L, 5.3L, or 6.0L engines who need a reliable replacement for their knock sensors. It’s ideal for DIYers or mechanics looking for a complete, high-quality kit that fits perfectly and prevents leaks.
Ready to Purchase?
5. Dual Knock Sensors with Wiring Harness Kit | Knock Sensor 5.3 for Chevy Suburban Silverado Avalanche Tahoe, GMC Sierra Yukon, Cadillac Hummer & More GM Vehicles | Replace# 12601822 12589867 917-033
Dual Knock Sensors with Wiring Harness help keep your engine smooth. They fit many GM vehicles and are made for a fast, easy fix.
This kit uses strong parts. It has solid brass terminals. It also helps fight rust.
It fits many 4.8L, 5.3L, and 6.0L engines. It comes with a 12-month warranty. You get reliable support if needed.
| Pros | Cons |
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Perfect For:
This Dual Knock Sensors with Wiring Harness Kit is perfect for anyone with a Chevy, GMC, Cadillac, or Hummer vehicle needing a reliable knock sensor replacement. It’s easy to install and built to last, ensuring your engine runs smoothly without noise or knock issues.
Ready to Purchase?
6. Knock Sensor Relocation Brackets and 36 Inches Extension Wire Harness for 1997-2007 GM Gen III LS V8 Engines LS1 LM7 LR4 LQ4 LS6 L59 LQ9 LM4 L33
This kit fits all LS V8 engines from 1997 to 2007. It moves sensors to the engine block edge.
The billet aluminum parts are strong and light. You get two brackets and a long wire harness. Use OEM connectors for a fast setup.
| Pros | Cons |
|---|---|
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Perfect For:
This product is perfect for anyone who wants to relocate LS knock sensors with ease and keep their engine setup clean and safe. It’s great for people who need a simple, strong, and reliable way to extend and move their sensors on any GM Gen III LS engine.
Ready to Purchase?
7. GM Genuine Parts 213-3521 (12589867) Ignition Knock (Detonation) Sensor
GM Genuine Parts 213-3521 is a knock sensor made for your GM vehicle. It helps keep your engine running smooth and safe.
It is a GM-recommended replacement part. It matches factory fit. It meets GM OE standards.
You get quality, reliability, and durability. It is made for fit, form, and function. It is a smart choice for your vehicle.
| Pros | Cons |
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Perfect For:
This part is perfect for GM car owners. It helps your engine run well. It is a great fit for Chevrolet and GMC trucks. Use it if your check engine light is on. It stops bad engine noise. This sensor is a top choice for a safe repair. It is made to fit just right. It is easy to use. You can trust this genuine part. It keeps your car in good shape. You will save time and feel good.
Ready to Purchase?
8. 2Pcs Knock Sensor Relocation Bracket Kit for 1997-2007 GM Gen III LS V8 Engines LS1 LM7 LR4 LQ4 LS6 L59 LQ9 LM4 L33
This kit fits your LS engine perfectly. It moves the knock sensors to the bottom edge for better performance.
It uses high-quality aluminum. It stays cool under heat. It lasts a long time.
You get two brackets and mounting bolts. Professional installation is recommended for some setups.
| Pros | Cons |
|---|---|
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Perfect For:
This kit is for car fans and truck owners with GM LS V8 engines from 1997 to 2007. It helps move knock sensors to make repair work fast and easy without pulling the intake. Perfect for LS swap projects and custom builds that want to save time and money. If you love fast cars, this is good for you.
Ready to Purchase?
9. LS Gen 3 Knock Sensor Relocation Brackets with 41 Inch Extension Wire Harness Kit for 1997-2007 GM Gen III LS V8 Engines LS1 LM7 LR4 LQ4 LS6 L59 LQ9 LM4 L33 Aluminum
Upgrade your engine with these aluminum brackets. They move your knock sensors to a better spot.
This kit fits GM Gen III LS V8 engines. It is made for models from 1997 to 2007.
The set includes a 41 inch wire harness. Installation is very fast and simple. It ensures your engine runs smooth and safe.
| Pros | Cons |
|---|---|
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Perfect For:
This kit is perfect for anyone who works on GM Gen III LS engines and wants a fast, simple way to move the knock sensors without pulling the intake. It’s great for builders who want strong parts, easy wiring, and a clean setup.
Ready to Purchase?
10. GM Genuine Parts 213-1576 (12623730) Ignition Knock (Detonation) Sensor
GM Genuine Parts 213-1576 is a knock sensor for your GM vehicle. It is a GM-recommended replacement part. This sensor is made to fit your car.
This ignition knock sensor is built to last. It meets GM’s high standards for quality and performance. You can trust this part to work well.
The 213-1576 sensor is easy to install. It is designed to match your GM vehicle’s needs. This genuine part will keep your engine running smoothly.
| Pros | Cons |
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Perfect For:
This GM Genuine Parts Ignition Knock Sensor is perfect for GM vehicle owners who want a reliable replacement part. It’s made to fit and work just like the original, so it’s ideal for keeping your car running smoothly.
Ready to Purchase?
Buying Guide
GM LS knock sensor kits help your engine stay safe. They can stop bad timing. They can also help your truck run smooth.
A good kit can make the job easy. It can save time in the shop. It can also help you feel sure about the fix.
Many kits fit LS1, LS6, LM7, LQ4, LQ9, and more. The best one depends on your engine and your goal.
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Engine fit: Check the engine code first. Not all kits fit all GM LS engines. A wrong fit can waste time and money.
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Sensor type: Some kits use genuine GM sensors. Some use aftermarket sensors. Genuine parts often give a more exact fit. Aftermarket parts can cost less.
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Relocation or direct replace: Some kits move the sensors to the engine block edge. Some kits replace the old sensors in the same spot. Pick the style that matches your build.
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Harness length: A kit with the right wire length is easier to use. Short wires can make the job hard. Longer wires can help with clean routing.
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Bracket material: Many kits use aluminum or billet aluminum. These parts are strong and light. They also hold up well to heat.
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Gasket set: Some kits include intake manifold gaskets. This can save a second buy. It can also make the repair more complete.
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Ease of install: Some kits are made for DIY use. They may let you work from the top side. That can save time and effort.
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Heat and leak protection: A good kit should handle heat well. It should also help protect sensors from coolant leaks. That can help the parts last longer.
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Warranty: A longer warranty can add peace of mind. It can also show better build quality. Check the terms before you buy.
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Hardware included: Some kits come with bolts, brackets, and connectors. A full kit can make the job smoother. It can also cut down on extra trips for parts.
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Model year range: Many kits fit 1997 to 2007 engines. Some fit only Gen 3. Always match the year range to your engine.
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Build quality: Look for strong terminals, solid connectors, and clean fit. Good parts can help the engine run right. They can also reduce repeat work.
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Your skill level: If you want a fast fix, choose a simple kit. If you want a full upgrade, choose a kit with more parts. Pick what fits your tools and time.
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Price vs value: The lowest price is not always the best deal. A better kit can save time later. It can also lower the chance of a second repair.
Choose the kit that fits your engine, your budget, and your job. A good match can make the repair easy. It can also help your GM LS engine run strong and smooth.